Die-separating means



Sept. 29, W25.. l 1,555,728 R. L.. wlLcom DIE SEPARATIHG MEANS Filed. Feb. 6,I 1922 Patented Sept. 29, 1925.

UNIT-Eo STAT-Es y N 1,555,725 PATENT orancia. i

RICHARD LESTER `WILCOX, OF WATERBRY, CONNECTICUT, ASSIGNOR *TO WATERBURY *FARREL FOUNDRY AND MACHINE COMPANY, WT'ERURY, 1CON-- NECTICUT, 'A CORPORATION OF CC'NE'ECfl'lll'l.`

DIE-snrnnnrne MEANS.

Application filed 'February ToaZZ whom t may concer/5.' n

Be it: known vthat I, "RICHARD Lss'rne W1). cox, citizen of the United States, residing 'at lvaterhury, in the county 'of New Haven andStateof Connecticut,liave invented ceiI` tain new and useful Improvements in Die- 'Separating Means, of which the followingis a specification, Areference being had therein to the accompanying drawings.

My invention relates to die 'separating means, its principal object heing to provide simple mechanism 'for separating the dries ol 'an open die header or upsetting machine.

Among other aims andl objects of my inv'ention `may be vrecited the provision of a device of the character mentioned with a view to co-mpactness and in which the number of parts vare few, the construction siriple, lthe cost of production small, and eiiiciency and operation high. y

The improvements inthe details and arrangement of parts will he apparent from an inspection of the accompanying drawings, in connection with the description hereinafter contained, and wherein 'an embodiment of the invention is disclosed 'for the purpose of imparting a 'full understanding of the same.

Having more 'particular reference to the drawings and in connection with which like reference characters refer to corresponding parts in the several figures; v

Figure l is a 'front view of a pair o'f dies of a! heading machine or vthe like and a frat; mentary portion of its supportingv mecha` nism, with my "improved means connected therei'vith; y

Figure E2 is a sectional elevation thereof taken generally upon `line 2--2 of `Figure l;

figure B is` a detail sectional view off the mechanism taken generally upon line 8 3 of Figure 2;

Figure 4 is a detail sectional view, similar v'to Fignre 3, illustrating fa modified structure;

Figure 5 Ais a fragmentary sectional elevation, vsimilar to Figuref, illustrating a modi- "lied structure; -and p Figure 6 is a Vfront view of a `pair of dies, and adjacent mechanism, similar to Figure l, but illustrating an alternative structure..`

It'has heretofore heen'the practice-to separa-te the dies of an-open die header or upsetting machine at the wire feed. `line by parting pins, vseparating"pins or'thelike, an illustration off such 'means being shown in Letters l-atent No. 41,104,090, dated dulyQl. 1914, particularly in Figure 4 thereof, and 'also in Letters Patent No. 1,108,958, dated September l, 1914, a heavy flat sp-ring,'not shown i'n either of the above pa-tents, hearing upon ythe upper end of 'each 'of the part-ing `pins or separating pins, which move in a patih at substantially a. right: angle to the movement of the dies. With such mechanisin the die cap or other part or-part`s that `supportthe pins must loe machined 'with great care and exactnesseach 'must he in correct.' alignment with each other and -the groove formed bythe angular corner faces of the dies, when the dies are in proximity to the wire feed line. If the 'pins are not so arranged, the lower pointed end thereof will not 'register with said groove, "thus lhaving a tendency to crampflthe dies and applyan VAunequal vpressure Tthe'reto at ldifferent points throughout their length. If this occurs,the diesmay he separated more fat one end than at vthe other, and 'if `perchance "the Vminimum separation is at the inner end of Vthe dies a defective feedof'the wire'results and the end of the wire may abut against the dies and stop the feed. p

With 'the use of suchpinsthe spring pressure upon the endfthereof is constant, therefore it 'requires not only a,"pre'ssn1'e sju'i'iicient to move the dies and cut o'if'the wire but also to resist the lpressure of rtihe. pin actuating springs, which pressure is constant upon the tcp of one of thedies during its entire movement. y Thereis no use for this :pressure except when the dies areto be separatedatthe wire feed, line, hence more y power =is necessarily required to actuate the dies. While more powerful mechanism is required to movethe dies from the wire feed line to the upsetting line, 'the dies are usually returned by spring pressure, the strength of which must of necessity alsohe increased'to overcome the need-less drag andpressure of the pins.`

As the `pins are ofsuhstantial length the element in which they lare mounted must of necessity be of substantial height toprovide proper support therefor and this height, as well as the pin operating springs, requires space that can otherwise he advantageously utilized. i

lmany other' ways, produces results that are advantageous and insure certainty and emciency in operation, and with mechanism that is of comparatively simple design.

I-Iaving more particular reference to the drawings, numerals 10 and 11 represent the dies, which are of the usual form with corner angular faces 12 which unite to form a V shaped groove substantially as shown in Figures 1 and 3, wherein the dies are adjacent to the wire feed line n-ear the line 2 2 ofvFigure 1. A piece of wire designated 13 is shown in section at this feed line. A

The bed plate upon which the dies are supported in Vdesignated 14, and the cap or' cover over the top thereof 15.

All of the mechanism above described is of a well known form and operates in an equally well known manner and therefore` needs no further description herein.

Themeans for actuating the dies is not shown herein for the above reason, but the saine travel between the wire feed line and the upsetting line, which latter line is designated in Figure 1. Fromthe wire feed line "'to the upsetting line the dies are positively actuated by relatively powerful mechanism to cut ofi' a piece of the wire rod but are usually returned from the upsetting line by spring mechanism.

Referring n ow particularly to Figures 1, 2 and 3, the bed plate 14 is provided with an opening 16 having one angular wall 17 and an adjacent wall 18 separated by a recess 19 within which is a block 2O which is loosely mounted and moved in one direction by one or more springs 21 and having a circular recess 22 in the top thereof. A plate 23 preferably rounded at each end is supported by the block 2O with one of its rounded ends in the circular recess 22 substantially as shown in Figure 3. Endwise movement of this block and plate within the opening 16 is prevented by the cap 24 connected with the bed plate, or by other suitable means.

The position of the plate-23 is shown by full lines when the dies are at rest near the vwire feed line, at which time the upper rounded end of said. plate is within the V groove formed by two of the angular faces 12 of the dies 10 and 11 and the lower rounded end is within the recess 22 of the block 20.

When the parts are so arranged the dies 10 and 11 are a slight distance apart so as to admit a proper feed of the wire 13 therebetween. As the dies move from this position to the upsetting line, the plate 23 rocks therewith until it assumes the position in the opening 16 substantially vas shown by broken lines in Figure 3.

The pressure of the springs 21 upon the block 2O and through it upon the plate 23 is such as to always maintain the lower end of said plate in contact with said block and the upper end with one or both of the adjacent angular faces 12 of the dies 10 and 11, thus insuring a constant contact of the said plate. Y

lVhen the dies are returned from the upsetting line to the wire feed line and are approximately at the latter line, the lower rounded end of the plate 23 fulci'ums in the curved recess 22, which is now rigid against the bottom 25 of the recess` 19, and

moves the upper rounded end upwardly a limited distance and forces the dies apart' the required distance. lith this improved separating mechanism only the minimum amount of space is required, pressure is i only applied when the dies are at or near the wire feed line, and in these and other ways, the objections to the mechanism heretofore commonly utilized for separating the dies are eliminated and many obvious -f advantages secured.

A plurality of blocks 20 and plates 28, each in a separate recess may also be substituted for a single block and plate, if desired, substantially as shown in Figure 5, the bed plate 14L being suitably formed for this purpose.

I have shown herein my improved mechanism as applied to the underside of the dies but obviously it will operate equally as well if applied to the top side thereof, or if desired, it may be used upon both top and bottom as shown in Figure 6. lhen applied to the top side of the dies, the cap or cover 15 is so constructed as to receive the block 20, plate 28, and cap 24, all of which are as above described.

The ends of the plate 23a may, if desired, be V-shaped or otherwise formed as illustrated in Figure 4, instead of rounded as above described, in which case the block 2Oa is shaped to accommodate this changed structure. f

There are minor changes and alterations that can be made within my invention, aside from those hereinfsuggested, and I would therefore have it understood that I do not limit myself to the exact construction herein 'shown and described, buty claim all that machine or the like, of means for separating the same at a predetermined point, comprising a plate within an adjacent recessed member, in contact with and moved by said dies, a block movable within said member, and means for holding the same in contact with said plate.

2. In combination with dies of a heading machine or the like, of means for separating said dies, comprising afrock member within an adjacent recessed member, a second member, and means for mounting the same in said recessed member whereby it will main'- tain contact with said plate irrespective of the position of said plate within said recessed member.

3. In combination with the dies of a heading machine or the like, of a recessed member adjacent thereto, a plate movable within the recess in said member, -a block movable in said recess and having contact with said plate, and means for holding said block in contact with said plate during the entire movement of thelatter by said dies.

4:. In combination with the dies of a heading machine or the like, of a recessed member adjacent thereto, a block mounted within the recess in said member, yielding means for moving said block in one direction, and a plate having cont-act with said block and dies.

5. In combination with the dies of a heading machine or the like, of a recessed member adjacent thereto, a block movably mounted within the recess in said member, yielding means for moving said block in said recess toward said dies, and a plate having contact at one end with said block and at the other end with the walls of the notch :formed between said dies.

6. In combination with the dies cfa heading machine or the like, means for supporting the same, and means for separating said dies, comprising a rock member within a recessed member, a fulcrum block in said recessed member, and means for mounting said fulcrum block whereby it will maintain contact with said rock member irrespective of its relative position in said recessed member.

7 In combination with the dies of a heading machine or the like, of a recessed member adjacent thereto, a plate having rounded ends movable within the recess in said member, a block having one recessed face to receive one of the rounded ends of said plate, and means for mounting said block whereby it will maintain contact with said plate irrespective of its relative position in said recessed member.

8. In combination with the dies of a heading machine or the like, so shaped that when adjacent to each other a groove is formed therebetween at one edge thereof, of a recessed member adjacent thereto, a block within said recessed member, a rock member having engagement at one end with said groove and at the other end with said block, and means for maintaining said block in contact with said rock member, during the entire movement of said dies.

9. In combination with the dies of a heading machine or the like, so shaped that when adjacent to each other a groove is formed therebetween at one edge thereof, of a recessed member adjacent thereto, a block within said recessed member, a rock member rounded at each end, one of said rounded ends having a pivotal connection with the said block and the other projecting into said groove, and means for actuating said block so that said rock member will maintain contact with said dies during the entire movement thereof.

In testimony whereof, I have hereunto aiiixed my signature.

RICHARD LESTER WILCOX. 

